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A student placed 13.5 g of glucose (rm C_6H_{12}O_6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-rm mL mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 25.0-rm mL sample of this glucose solution was diluted to 0.500 rm L. How many grams of glucose are in 100. rm mL of the final solution?
Zinc is used to make galvanized iron pipes. these pipes are protected from the rust reactions that would normally occur. Which statement best explains why zinc is used.
Calculate the net charge of Aspartic Acid. Its given that Aspartic acid has a pK1 COOH at 1.99 and also a pK2 NH3 group at 9.90. PKr Side Chain is 3.90 (COOH) How do i find the net charge?
calculate the pH of this solution after the addition of 4.46 mL of 5.9 M nitric acid. The Kb of ethylamine is 6.4x10-4 some help would be awesome
What mass of carbon dioxide is present in 1.00 cm^3 of dry air at a temperature of 15 0C and a pressure of 697 torr?
an auto mechanic spills 83mL of 2.6M H2SO4. How many milliliters of 1.2M of NaHCO3 must be poured on the spill to react completely with the sulfuric acid?
A studet determined the percentage KHP in an impure sample of KHP . a 3.150g sample of impure KHP required 41.50 mL of 0.1352M NaOH solution for titration.1) calculate the number of moles of NaOH required for this titration
A bottle of wine contains 13.5% ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3. Calculate the concentration of ethanol in wine in terms of mass percent and molality.
how many constitutionally isomeric monochlorides can be formed on free-radical chlorination
A solution containing a mixture of metal cations was treated with dilute HCl and a precipitate formed. The solution was filtered and H2S was bubbled through the acidic solution.
Calculate the number of moles of Cl atoms in 1.20×1024 formula~units of magnesium chloride, MgCl_2
Which atom has the least attraction for the electrons in a bond between that atom and an atom of hydrogen?
1. for the term symbolsnbspnbsp 3d 4d and 2gnbsp write the designation including the j values.nbsp in each case pick
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